The Horizon Apollo Memory Mattress is a Which? Best Buy! Featuring a fabulous space-age design this stunning mattress combines two different types of foam to deliver both comfort and support. Enjoy an extra-deep 7.5cm layer of comfortable memory foam, whilst the dense foam core provides continuous pressure relief along your back and joints. This mattress also features a supersoft knitted cover, which is removable for your convenience. The Apollo is hypoallergenic, covered by a Five Year Warranty and is available with Free Next Day Delivery!